About this river
Saint Johns River is an 8.5 mile river near Up The Creek Xpeditions in Georgia. Streamflow is measured at the USGS gauge ST. Johns River at Jacksonville, FL (site 02246500). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1972 to 2026
Saint Johns River typically runs highest in October, at a median 11,500 cfs, and lowest in May, at 3,480 cfs. The highest flow on record for any single day is 146,000 cfs, in 2017.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 7,860 | -1,230 to 16,400 | |
| February | 7,280 | -1,910 to 16,600 | |
| March | 6,480 | -4,140 to 15,800 | |
| April | 5,805 | -4,520 to 13,900 | |
| May | 3,480 | -5,920 to 12,200 | |
| June | 6,230 | -2,135 to 14,600 | |
| July | 7,260 | -1,420 to 14,700 | |
| August | 8,070 | -332 to 14,700 | |
| September | 7,960 | -1,780 to 16,600 | |
| October | 11,500 | 794 to 20,200 | |
| November | 9,035 | -926 to 18,950 | |
| December | 8,570 | -6.3 to 18,200 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 37 years of record. Statistics published by the US Geological Survey for ST. Johns River at Jacksonville, FL (site 02246500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Saint Johns River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Lonnie Wurn Boat RampSt. Johns RiverPublic
- Arlington Lions Club Park & Boat RampSt. Johns RiverPublic
- Fulton Road Unimproved LandingSt. Johns RiverPublic
- Joe Carlucci Sisters Creek ParkSt. Johns River - Sisters CreekPublic
- Jim King Park and Boat Ramp at Sisters CreekSt. Johns River - Sisters CreekPublic
- Michael B. Scanlon Mayport Boat RampSt. Johns RiverPublic
- Palms Fish Camp Public RampSt. Johns River - Clapboard CreekPublic
- Clapboard Creek Fish CampSt. Johns River - Clapboard CreekPublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Saint Johns River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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